USGS 02236125 ST. JOHNS RIVER AT ASTOR, FL

PROVISIONAL DATA SUBJECT TO REVISION

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This gage is monitored in cooperation with the St. Johns River Water Management District.

Link to the St. Johns River Water Management District.
Data are tidally affected -- Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data.

REMARKS.--Computed discharge at this station may differ from individual measurements because of changes in tidal influence, wind, or other factors.

Available Parameters Available Period
  
2007-12-13  2016-09-30
1995-10-01  2025-10-11
2007-10-01  2025-10-11
2007-12-13  2016-09-30
2008-07-11  2016-09-30
2010-10-01  2025-10-11
2008-07-11  2015-09-30
2007-10-01  2025-10-10
2025-06-13  2025-10-11







 (7)
 
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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second
Most recent instantaneous value: -1460 10-11-2025   15:30 EDT
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Daily discharge, cubic feet per second -- statistics for Oct 11 based on 31 water years of record more
Most Recent
Instantaneous
Value Oct 11		 Min
(2012)		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Max
(2023)
-1460 1210 3430 5550 6100 7800 16900